EP 0363813 A3 19910724 - TERPOLYMER AND TRANSPARENT LAMINATE HAVING EXCELLENT OPTICAL PROPERTIES

Title (en)

TERPOLYMER AND TRANSPARENT LAMINATE HAVING EXCELLENT OPTICAL PROPERTIES

Publication

EP 0363813 A3 19910724 (EN)

Application

EP 89118448 A 19891004

Priority

JP 15671889 A 19890621
JP 15671989 A 19890621
JP 25080288 A 19881006

Abstract (en)

[origin: EP0363813A2] A terpolymer having excellent optical properties, which is an ethylene/vinyl acetate/vinyl alcohol terpolymer obtained by uniformly partial saponifying an ethylene/vinyl acetate copolymer and i) in said copolymer (1) the content of the units derived from vinyl acetate (2) MFR (3) polydispersion index Mw/Mn, and (4) comonomer distribution ratio are in a definite range, and ii) in said terpolymer (5) the content of the units derived from vinyl alcohol, and (6) enthalpy of fusion ( DELTA Hm) are in a definite range. Also, a transparent laminate formed by sandwiching this terpolymer between a plural number of transparent materials comprising glasses and/or synthetic resins is shown. This transparent laminate is effectively utilized as a windshield of an automobile or the alternative product thereof.

IPC 1-7

C08F 8/12; C08F 218/08; B32B 17/00; B32B 27/00

IPC 8 full level

C03C 27/12 (2006.01); C08F 8/12 (2006.01)

CPC (source: EP)

C08F 8/12 (2013.01); C08J 5/18 (2013.01); C08F 2800/10 (2013.01)

C-Set (source: EP)

Citation (search report)

[Y] GB 1190018 A 19700429 - MONSANTO CO [US]
[Y] FR 2236878 A1 19750207 - NAT DISTILLERS CHEM CORP [US]
[Y] EP 0140068 A1 19850508 - KURARAY CO [JP]
[AD] US 3378515 A 19680416 - SALYER IVAL O, et al
[A] EP 0146138 A2 19850626 - KURARAY CO [JP]

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0363813 A2 19900418; EP 0363813 A3 19910724; EP 0363813 B1 19940216; DE 68913124 D1 19940324; DE 68913124 T2 19940825

DOCDB simple family (application)

EP 89118448 A 19891004; DE 68913124 T 19891004